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3 years ago

Solve the system of equations

Mathematics

1 answer:

Fantom [35]3 years ago

7 0

Where are the answer choices to the question ?

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Help with questions 21-23 using pemdas

taurus [48]

Answer:

21. 123 22. 6.86 or 6/ 6/7 23. 90

Step-by-step explanation:

21. (6+4)² + (22+10÷2)

(10)² + (22 + 5)

100 + 27

127

22. (11+42-5) ÷ (11-4)

48 ÷ 7

6.85 or 6 6/7

23. (17-3) × (14 - 6) -22

14 × 8 - 22

112 - 22

5 0

3 years ago

PLEASE HELP!!

allsm [11]

Answer:

im guessing?

Step-by-step explanation:

each=4921

3 0

3 years ago

Which is a perfect square?<br> 6’1<br> 6’2<br> 6’3<br> 6’5

iren [92.7K]

Answer:

6'2

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find a and b if the point p(6,0) and Q(3,2) lie on the graph of ax+ by=12

tiny-mole [99]

to get the equation of any straight line we only need two points off of it, hmmm let's use P and Q here and then let's set the equation in standard form, that is

standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

$(\stackrel{x_1}{6}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{2}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{2}-\stackrel{y1}{0}}}{\underset{run} {\underset{x_2}{3}-\underset{x_1}{6}}}\implies \cfrac{2}{-3}\implies -\cfrac{2}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{0}=\stackrel{m}{-\cfrac{2}{3}}(x-\stackrel{x_1}{6})$

$\stackrel{\textit{multiplying both sides by }\stackrel{LCD}{3}}{3(y-0)~~ = ~~3\left( -\cfrac{2}{3}(x-6) \right)}\implies 3y=-2(x-6) \\\\\\ 3y=-2x+12 \implies \stackrel{a}{2} x+\stackrel{b}{3} y=12$

5 0

2 years ago

Hamza bought 8 gallons of brown paint to paint his kitchen and dining room. Unfortunately, when

dalvyx [7]

Answer:

4 gallons of white paint

Step-by-step explanation:

Let

x -----> quantity of gallons of white paint that Hamza has to buy

we know that

A gallon of white paint must mixed with 2 gallons of brown paint

using proportion

$\frac{1}{2}\frac{gallon\ white}{gallons\ brown} =\frac{x}{8}\frac{gallons\ white}{gallons\ brown}\\\\x=8/2\\x=4\ gallons\ white$

3 0

3 years ago